Τρίτη 22 Οκτωβρίου 2013

Science News SciGuru.com

Science News SciGuru.com

Link to Science News from SciGuru.com

Numerical validation of quantum magnetic ordering

Posted: 22 Oct 2013 07:18 AM PDT

Numerical simulations designed to confirm the magnetic characteristics of 3D quantum materials largely match the theoretical predictions

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Coffee Consumption Reduces Risk of Liver Cancer

Posted: 22 Oct 2013 07:11 AM PDT

Coffee consumption reduces risk of hepatocellular carcinoma (HCC), the most common type of liver cancer, by about 40 percent, according to an up-to-date meta-analysis published in Clinical Gastroenterology and Hepatology, the official clinical practice journal of the American Gastroenterological Association. Further, some data indicate that three cups of coffee per day reduce liver cancer risk by more than 50 percent.
 

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Nano-Cone Textures Generate Extremely "Robust" Water-Repellent Surfaces

Posted: 21 Oct 2013 11:54 AM PDT

When it comes to designing extremely water-repellent surfaces, shape and size matter. That's the finding of a group of scientists at the U.S. Department of Energy's Brookhaven National Laboratory, who investigated the effects of differently shaped, nanoscale textures on a material's ability to force water droplets to roll off without wetting its surface.

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Anthropologist Studies the Evolutionary Benefit of Human Personality Traits

Posted: 21 Oct 2013 11:43 AM PDT

Bold and outgoing or shy and retiring –– while many people can shift from one to the other as circumstances warrant, in general they lean toward one disposition or the other. And that inclination changes little over the course of their lives.

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World´s first universal transistor, fusing n- and p- type behavior with equal performance into a single device

Posted: 21 Oct 2013 10:48 AM PDT

Scientists at the Nanoelectronic Materials Laboratory (NaMLab gGmbH) have demonstrated the world´s first universal transistor that delivers equal performance for n- and p- type response. They demonstrated an energy efficient CMOS circuit with one single transistor type instead of the two different types used in conventional electronics. Additionally, the nanowire circuit provides different circuit functions enabled by switching the transistors configuration.

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New clue to aggressive brain tumors

Posted: 21 Oct 2013 09:30 AM PDT

Scientists at Washington University School of Medicine in St. Louis have identified a biological marker that may help predict survival in people with deadly brain tumors. The researchers showed that when the marker is present at higher levels, brain cancers known as glioblastomas are more aggressive.

The cancer cells do not make the marker, a protein called F11R. Instead, it is made by noncancerous cells, called monocytes, found within the tumor. Monocytes normally support and protect healthy brain cells, but they also can provide critical support to tumors.

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Tuberculosis and the Social Lives of Badgers

Posted: 21 Oct 2013 09:00 AM PDT

Badgers are an important wildlife reservoir for tuberculosis infection, a disease that leads thousands of cattle to slaughter each year. Now, researchers reporting in the Cell Press journal Current Biology on October 21 have found that the spread of the disease is influenced in surprising ways by infected badgers, and especially by the details of their social lives.

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Do Sunny Climates Reduce ADHD?

Posted: 21 Oct 2013 08:46 AM PDT

Attention-deficit/hyperactivity disorder, or ADHD, is the most common childhood psychiatric disorder. Scientists do not know what causes it, but genetics play a clear role. Other risk factors have also been identified, including premature birth, low birth weight, a mother's use of alcohol or tobacco during pregnancy, and environmental exposures to toxins like lead.

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Scientists untangle nanotubes to release their potential in electronics industry

Posted: 21 Oct 2013 08:36 AM PDT

Researchers have demonstrated how to produce electronic inks for the development of new applications using the 'wonder material', carbon nanotubes.

Carbon nanotubes are lightweight, strong and conduct electricity, which make them ideal components in new electronics devices, such as tablet computers and touchscreen phones, but cannot be used without being separated out from their natural tangled state.

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